Willard, David G. <br/><br/>
Cobalt availability :  a minerals availability appraisal / 
by David G. Willard and Donald I. Bleiwas. 
 - Washington, DC :  U.S. Dept. of the Interior, Bureau of Mines,  1991. 
 - iv, 35 p. :  ill., maps. 
 - Information circular ;  9286 .
 - Information circular (United States. Bureau of Mines) ;  9286. .
<br/><br/><label>LCCN: </label>91036125 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cobalt industry.<br/>Cobalt mines and mining.<br/>Strategic materials.<br/>Cobalt industry--United States.<br/>Cobalt mines and mining--United States.<br/>Strategic materials--United States.